Introduction
Hypertherm is in no way affiliated with the above mentioned manufacturer
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Always make sure all high-pressure water has been removed from the valve by the following machine manufacturers' safety instructions. Failure to do so can cause severe injury or death.
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Turn OFF all water pressure to the on/off valve.
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The valve components can be replaced with the valve body mounted to the pump.
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Loosen the high-pressure tubing from the high-pressure gland fitting using a 5/8" and 1" wrench.
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Unthread the high-pressue tubing from the high-pressure gland fitting.
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Loosen the high-pressure gland fitting using a 1-1/8" wrench.
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Unthread the high-pressure gland fitting from the valve body.
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Disconnect the air line from the actuator.
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Unthread the actuator from the valve body.
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Remove all the valve components from the valve body with the included dowel.
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Thoroughly clean theinterior of the valve body with isopropyl alcohol or a similar cleaning agent before replacing the components.
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Visually inspect the top and bottom of the valve bore for cracks/blemishes. If excessive wear or cracks are visible, replace the valve body.
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Slide the O-ring on to the point of the valve stem.
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Slide the stainless steel back-up ring on to the valve stem point with the chamfer side towards the O-ring.
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Slide the brass back-up ring on to the valve stem point with the chamfer side away from the stainless steel back-up ring.
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Put the hoop on the high-pressure seal with the sharp edge of the hoop towards the seal.
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Slide the hoop and the high-pressure valve seal onto the valve stem with the hoop towards the brass back-up ring.
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Apply high-pressure lubricant to the outside diameter of the high-pressure valve seal.
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Put the point of the valve stem into the valve body.
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Push the valve stem with the dowel until it bottoms out.
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Reconnect the air tube to the actuator.
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Clean the high-pressure gland fitting of all Blue Goop.
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Reapply Blue Goop to the threads of the high-pressure gland fitting.
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Put the seat into the top of the high-pressure gland fitting with the flat side towards the gland fitting.
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Apply Blue Goop to the top of the seat.
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Thread the high-pressure gland fitting into the bottom of the valve body.
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Tighten the high-pressure gland fitting using a 1-1/8" wrench.
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Clean the high-pressure tubing threads and cone of all Blue Goop with isopropyl alcohol or a similar cleaning agent.
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Reapply Blue Goop to the high-pressure tubing threads and cone.
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Thread in the high-pressure tubing to the bottom of the high-pressure gland fitting.
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Apply water pressure to the valve assembly to verify there are no leaks.
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Re-install the cutting head and continue the cutting process.
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Re-install the cutting head and continue the cutting process.
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